A kind of biomass superfine powder preparation device and preparation method thereof

Abstract

The object of the present invention is to provide an apparatus and a method for the preparation of a biomass ultrafine powder. The device consists of a coarse crusher, a biomass-adapted ultrafine crusher, a pulse-jet baghouse dust collector, a double-plated feed valve, and an induced draught fan. The coarse crusher and the ultrafine crusher are connected by means of a pipeline; the ultrafine crusher is provided, from bottom to top, with a crushing chamber and a sorter; and the ultrafine crusher and the sorter are configured as an integral structure such that crushing and sorting may be continuous and synchronous. The beneficial effects of the present utility model are: a millstone in the crushing chamber crushes fed materials into a non-uniform powder; the sorter sorts said non-uniform powder into a fine powder conforming to a standard grain size and a coarse powder not conforming to said standard grain size, whereof said coarse powder, due to the weight thereof, falls back into the crushing chamber for further crushing, and said fine powder is fed, via the pipeline, into the pulse-jet baghouse dust collector by the sorter; the feed valve collects and outputs irregular crystalline powder for neat and easy sifting; the ultrafine crusher and the sorter are configured as an integral structure such that crushing and sorting may be continuous and synchronous; and dust-containing exhaust gas from said dust collector is discharged by the induced draught fan, greatly reducing pollution of the environment.

Description

technical field [0001] The invention relates to a biomass ultrafine powder preparation device and a preparation method thereof, belonging to the field of ultrafine powder preparation. Background technique [0002] Pulverization technology plays an important role in the conversion and pre-treatment of biomass energy. Only the continuous progress and improvement of pulverization processing technology can effectively promote the extensive, efficient and sustainable utilization of biomass energy in my country. Generally speaking, the finer the particle size of the crushed biomass raw material, the better the post-processing and utilization effect. However, due to the characteristics of light specific gravity and high fiber content of biomass, most of the existing biomass crushing equipment uses traditional hammer mills, wood mills, etc. Powder machine and other equipment instead, the particle size of the crushed material is coarse and cannot be adjusted, the production efficienc...

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Problems solved by technology

Generally speaking, the finer the particle size of the crushed biomass raw material, the better the post-processing and utilization effect. However, due to the characteristics of light specific gravity and high fiber content of biomass, most of the existing biomass crushing equipment uses traditional hammer mills, wood mills, etc. Powder machine and other equipment instead, the particle size of the crushed material is coarse and cannot be adjusted, the production efficiency is low, and it is difficult to meet the needs of production and research

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